Improved glass-mould



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HOMER BROOKE, or NEW voeren. Y.

Leaf/fs PamNasacm, dared .nw'mwry 5, 1869.

IMPROVE!) GLASS-MOULD.

The Schedule referred tp in these Letters Patent and making part or the same.

vreference beingY had to' the accompanying drawing,

forming part of this specilication, and in which- Figure l .represents a glass-mould constructed in accordance with my improvement, in a shape or form for .making bottles, and as thrown open;

Figure 2, a sectional plan of the same, taken as denoted by the line a: a: in figs. 1 and 3;

Figure 3 is a vertical section of said mould, closed, at right angles to hg. l; and

Figure 4, a horizontal section ofthe mould, as closed, through said. line x x.

Similar letters of reference indicate corresponding parts.

This, my improvement, has reference to glass-moulds for making bottles and other articles, in which the mould is made up of hinged sections, resting on or working over a bottom plate, and enclosing or surrounding, when shut, a centre plate. In all previous constructions of such moulds, it has been found difficult to secure, in the absence of oil, which cannot be used, in consequence of the heat of the mould, a free and easy or frictionless hinge-action to the mould-sections, without destroying the true and proper meeting of said sections when closed, or, however freelyand perfectly constructed atrfirst, the wear upon the hinge or joint has, sooner or later, impaired the easy and proper action' of the mould. Another difficulty has been the clearance of waste glass and dirt from off the bottom of the A mould or mould-bed, owing to the imperfect separation, by escape-openings, of the centre plate from said bottom or bed, and the absence of channels o r cavities in the bed for the overow and dirt swept by the meeting faces or edges of the mould-sections when brought together.

My invention, which obviates these difficulties, consists- First, ina peculiar construction of the hinge-portions of the mould-sections, whereby said sections, during the greater portion of their opening and closingactions, are relieved from bearing one upon the other, and are free hrom downward pressure of or on the jointpin, they, during such actions, being borne bythe mouldbed, but, in closing, or as they close, are caused to work in contact at their hin ge-surfaces, for the purpose of securing aproper vertical adjustment of said sections relaf tively to each other.

Secondly, the invention consists in a further peculiar construction ofthe hin ge-portions ofthe mould-sections, to admit of their free play in opening and closing, and to secure a' propel' relative horizontal or transverse adjustment of said sections.

Thirdly, the invention consists in such a recessed construction of the mould-bed, as that a cavity is formed, entirely surrounding the centre plate, and in communication with the openings, for carrying oi the waste glass and dirt, to eiect a more perfect clearance ofthe latter, and thereby to facilitate the close shutting of the mould. V

.Fourthly, theA invention consists iu a further construction of the mould-bed, for the same object or objects, by a certain arrangement of grooves relatively to thehinge of the mould.

Referring to the accompanying drawing- A A are two sections forming the body of the mould, arranged to open and shut, and kept in position by means of hinge-portions or projections, a, a and b-b, playing on or around a.joint'pin, c.

B is the mould-bed or bottom, on which the mouldbody or sections A A rest, and which is formed with a centre plate or raised disk, C, having a dovetailed groove, (l, in or around it, to receive the mould-sections when closed.

D is a cavity or recess, formed in the mould-bed, and .arranged to surround or encompass thev centre plate C, for the purpose of allowing the accumulating- Waste glass and dirt which collect ou the mould-bed,

when the mould-body is open, to escape therefrom and be discharged through openings e c.

Grooves, f f, arranged in the closing-line of the mould-sections vA A, are also formed-in the upper surface of the mould-bed, to form receptacles for waste glass and dirt in shutting to the mould-body, whereby the close meetingof the mould-sections is more eiiectvually secured. f

The hinge-portions, a. a and b b, of theV mould-sections, are provided with inclined planes, g g y g, so formed or arranged as that, while the mould is finish'- ing its closing-action, and when closed, the two inclines g g, of either double-hinge poitionpbear against each other, thereby adjusting the mould-sections vertically in' proper relation to each other, butso that, for the greater part of the opening and closingactions of the moulds, said inclines are free from. contact, and the mould-sections relieved from friction onthe hinge.

The hinge-portions a c and b b are, furthermore, provided with adjusting-surfaces or supportati'. h h h and t t t, arranged so that either pair, h h and i i, meet or come in contact inthe closing to of the mouldsections, thereby securing a proper relative horizontal adjustment of said sections, but work free of each other and all frictioual contactduring the larger portion of the opening and closing movements of the sections.

The inclined planes g g g g may be arranged on the back part of the hinge, or on both back and front thercof;` also, the hinge-portions, withtheir several inclines and supports g g g g, h it h lt, and t i t' i, may be made in separate pieces from the mould-sections,

and be attached to them by bolts, screws, or rivets, in preference to being cast with the mould-sections, as here shown.

Furthermore, the cavity D,Which encompasses the centre piece, may be made elliptical, square, or other shape besides round, as here shown, to Asuit different shapes of glass articles made in the moulds.

Likewise, the grooves ff may be arranged in variedy thev correspondingly-shaped lower edges of the mouldsections to fit into, said joint-pin may be made fast to the mould-bed, and a stop-pin be introduced to keep the mould-body central in or on the mould-bed.

What is here claimed, and desired to be seciued by Letters Patent, is-

l. The combination, withthe mould-sections A A, ofthe inclined planes g g, to or on the hinge-portions, a and b, of said sections, substantially as specified.

2. The surfaces or supports, h and i, on or to the hinge-portions, a and b, ofthe mould-sections, when combined therewith, essentially as shown and described.

3.' The combination, with an opening and closing mould-body, of the mould-bed or bottom B, constructed with a continuous cavity or recess, D, arranged to surround or encompass the @entre plate C, and having openings or grooves, f f, arranged on or in the mouldbed or bottom, in direction of the closing-line or lines Y of the mould-sections, essentially as shown and described.

Witnesses: HOMER BROOKE.

JOHN D. Rossm, HENRY PALMER. 

